Freetype: run bash autogen.sh before any ./configure commands

[Haroon-Khel]

ref #3509 (comment)

if ./configure --help is run before bash autogen.sh then we get

* module: psnames   (Postscript & Unicode Glyph name handling)
cd builds/unix; \
	        ./configure 
/bin/sh: ./configure: No such file or directory
make: *** [setup] Error 127

and therefore pngArg="--with-png=no" does not get set

Running it after the autogen.sh script works

bash-3.2$ arch -x86_64 ./configure --help | grep with-png
  --with-png=[yes|no|auto]

Needs testing in jenkins

[Haroon-Khel]

https://ci.adoptium.net/job/build-scripts/job/jobs/job/jdk8u/job/jdk8u-mac-x64-temurin/427/ is queued up, link will be active when 426 finishes

[andrew-m-leonard]

lgtm

[Haroon-Khel]

From the jenkins link above, the --with-png value gets set correctly
21:30:14 pngArg value: --with-png=no

[sxa]

LGTM and well spotted! Presumably we can remove https://github.com/adoptium/infrastructure/blob/ee8ecd8ddb812dd14641f557d3c3bb76f8a33097/ansible/playbooks/AdoptOpenJDK_Unix_Playbook/roles/Common/tasks/MacOSX.yml#L183 when this goes in?

[sxa]

May be better to exit with an explicit code of 1 if the autogen.sh fails, but otherwise this is good to go.